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HEALPix was originally devised in early 1997 by Krzysztof M. Górski at the Theoretical Astrophysics Center (TAC) in Copenhagen, Denmark (he is currently at JPL). Early development of the HEALPix concept and initial implementation was made in the spring of 1997 in collaborative work of K.M. Górski with Eric Hivon (currently at the Institut d'Astrophysique de Paris). Benjamin D. Wandelt, then at the TAC (now at the University of Illinois at Urbana-Champaign), has contributed critically to the further development of HEALPix and related mathematical methods. Frode K. Hansen, then at the TAC (now at Universita Roma II), Anthony J. Banday (Max Planck Institut für Astrophysik (MPA), Garching, Germany) and Matthias Bartelmann (then at MPA, now at Institut für Theoretische Astrophysik, Heidelberg, Germany) provided invaluable input required to make possible the first large release of the HEALPix software (Version 1.10).

The previous releases of the HEALPix software (Versions 1.20 and 2.0) and the current one (Version 2.1) benefited from the continuing dedicated effort of Eric Hivon, Martin Reinecke (MPA), and Anthony J. Banday, the work of William O'Mullane (ESAC), Hans Kristian Eriksen (Universitetet i Oslo), Snorre Boasson (NTNU), David Larson (JHU), Emmanuel Joliet (ESAC), Paddy Leahy (Manchester University), Graca Rocha (IPAC), and numerous contributions made by HEALPix users (see the Acknowledgements).

The active support of HEALPix currently involves the following people:
K.M. Górski (JPL/Caltech), E. Hivon (IAP), M. Reinecke (MPA-Garching), and A.J. Banday (MPA-Garching).

This effort is not supported by any dedicated funds, and depends entirely on the voluntary collaboration of the mentioned individuals.
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